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llvm-6502/lib/Support/Unix
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Benjamin Kramer 1222c5c121 Use access(2) instead of stat(2) to check if a file exists. 
Apart from being slightly cheaper, this fixes a real bug that hits 32 bit
linux systems. When passing a file larger than 2G to be linked (which isn't
that uncommon with large projects such as WebKit), clang's driver checks
if the file exists but the file size doesn't fit in an off_t and stat(2)
fails with EOVERFLOW. Clang then says that the file doesn't exist instead
of passing it to the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-02 16:28:09 +00:00
..
Host.inc revert r147542 after comments from Joerg Sonnenberger 2012-01-05 18:28:46 +00:00
Memory.inc setExecutable() should default to success if there's nothing custom for it. 2011-03-18 18:51:03 +00:00
Mutex.inc
Path.inc Fix the build under Debian GNU/Hurd. 2012-04-11 15:35:36 +00:00
PathV2.inc Use access(2) instead of stat(2) to check if a file exists. 2012-06-02 16:28:09 +00:00
Process.inc [Support] Fix sys::GetRandomNumber() to always use a high quality seed. 2012-05-08 20:38:00 +00:00
Program.inc Support/Program: Make Change<stream>ToBinary return error_code. 2011-12-13 23:16:49 +00:00
README.txt
RWMutex.inc
Signals.inc Fix null to integer conversion warnings. 2012-03-24 22:17:50 +00:00
system_error.inc
ThreadLocal.inc
TimeValue.inc
Unix.h [Support/Unix] Unconditionally include time.h. 2012-04-23 19:00:27 +00:00

README.txt 

llvm/lib/Support/Unix README
===========================

This directory provides implementations of the lib/System classes that
are common to two or more variants of UNIX. For example, the directory
structure underneath this directory could look like this:

Unix           - only code that is truly generic to all UNIX platforms
  Posix        - code that is specific to Posix variants of UNIX
  SUS          - code that is specific to the Single Unix Specification
  SysV         - code that is specific to System V variants of UNIX

As a rule, only those directories actually needing to be created should be
created. Also, further subdirectories could be created to reflect versions of
the various standards. For example, under SUS there could be v1, v2, and v3
subdirectories to reflect the three major versions of SUS.